19213131

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{21277}}^1$

素因数の和:21330

約数の個数: 16

約数和(自身を含む): 29959424

約数和(自身を除く): 10746293

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 21277, 63831, 148939, 446817, 914911, 2744733, 6404377, 19213131]

約数ペア:

[(1, 19213131), (3, 6404377), (7, 2744733), (21, 914911), (43, 446817), (129, 148939), (301, 63831), (903, 21277)]